8.84% is the change from 509 to 554
Calculation steps:
[( 554 - 509 ) ÷ 509] x 100 = 8.84%
Formula
Percentage change = [(554 - 509) / 509] x 100
Subtract the new number by the original number
554 - 509 = 45
45 ÷ 509 = 0.08840864440078586
0.08840864440078586 x 100 = 8.84%